Source: libvirt
Version: 11.3.0-1
Severity: normal
Dear Maintainer,
Since I upgraded from libvirt 11.1.0-1 to 11.2.0-2 (and later 11.3.0-1)
restoring internal snapshots fails:
error: Failed to revert snapshot foo1
error: operation failed: load of internal snapshot 'foo1' job
failed: Device 'libvirt-1-format' is writable but does not support snapshots
Here's a reproducer:
---8<---
qemu-img create -f qcow2 /tmp/foo.qcow2 1G
cat > /tmp/foo.xml <<-EOF
<domain type='kvm'>
<name>foo</name>
<memory unit='MiB'>32</memory>
<os>
<type arch='x86_64'>hvm</type>
</os>
<devices>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' discard='unmap'/>
<source file='/tmp/foo.qcow2'/>
<target dev='vda' bus='virtio'/>
</disk>
</devices>
</domain>
EOF
virsh create /tmp/foo.xml
virsh snapshot-create-as foo --name foo1
virsh snapshot-revert foo foo1
--->8---
Cheers!
-- System Information:
Debian Release: trixie/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 6.12.25 (SMP w/20 CPU threads; PREEMPT)
Kernel taint flags: TAINT_UNSIGNED_MODULE
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
